<a href=http://onlineslangdictionary.com/meaning-definition-of/ragtop>ragtop</a> To link to this term in a wiki such as Wikipedia, insert the following. [http://onlineslangdictionary.com/meaning-definition-of/ragtop ragtop] Some wikis use a different format for links, so be sure to check the documentation.
Talc (1), the softest mineral on the Mohs scale has a hardness greater than gypsum (2) in the direction that is perpendicular to the cleavage. Diamonds (10) also show a variation in hardness (the octahedral faces are harder than the cube faces).
Scientists rank the hardness of different materials from 1â10 on the Mohs harness scale, with the softest ones at the top: 1  Talc. 2  Gypsum. 3  Calcite. 4  Fluorite. 5  Apatite. 6  Feldspar. 7  Quartz. 8  Topaz. 9  Corundrum. 10  Diamond.